Straight quotes "..." is a special character for GeoGebra, should never be used directly in LaTeX.[br][br]For a single quotation marks in [b]text mode[/b] use:[br][code][br]\text{`Simple'}[br][/code][br]And for double quotation marks use:[br][br][code]\text{``Doble''}[br][br][br][/code][left][img]https://www.geogebra.org/resource/xnpzwhwh/XfTqOsJedhgw81Ha/material-xnpzwhwh.png[/img][/left]